Message ID | 475a4c7bcf8af86ed00259bc29bbfdbb42c66b7f.1730313237.git.nicolinc@nvidia.com |
---|---|
State | Superseded |
Headers | show
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Wed, 30 Oct 2024 14:35:03 -0700 From: Nicolin Chen <nicolinc@nvidia.com> To: <jgg@nvidia.com>, <kevin.tian@intel.com>, <corbet@lwn.net> CC: <joro@8bytes.org>, <suravee.suthikulpanit@amd.com>, <will@kernel.org>, <robin.murphy@arm.com>, <dwmw2@infradead.org>, <shuah@kernel.org>, <iommu@lists.linux.dev>, <linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-kselftest@vger.kernel.org>, <baolu.lu@linux.intel.com>, <eric.auger@redhat.com>, <jean-philippe@linaro.org>, <mdf@kernel.org>, <mshavit@google.com>, <shameerali.kolothum.thodi@huawei.com>, <smostafa@google.com>, <yi.l.liu@intel.com>, <aik@amd.com>, <zhangfei.gao@linaro.org>, <patches@lists.linux.dev> Subject: [PATCH v6 06/13] iommufd: Add alloc_domain_nested op to iommufd_viommu_ops Date: Wed, 30 Oct 2024 14:34:32 -0700 Message-ID: <475a4c7bcf8af86ed00259bc29bbfdbb42c66b7f.1730313237.git.nicolinc@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <cover.1730313237.git.nicolinc@nvidia.com> References: <cover.1730313237.git.nicolinc@nvidia.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: <linux-kselftest.vger.kernel.org> List-Subscribe: <mailto:linux-kselftest+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-kselftest+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002BA4B:EE_|LV8PR12MB9183:EE_ X-MS-Office365-Filtering-Correlation-Id: 9af5444b-bd4a-4f25-b790-08dcf92abd1c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|82310400026|36860700013; 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iommufd: Add vIOMMU infrastructure (Part-1)
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diff --git a/include/linux/iommufd.h b/include/linux/iommufd.h index 457e763e8b63..f03c75410938 100644 --- a/include/linux/iommufd.h +++ b/include/linux/iommufd.h @@ -14,6 +14,7 @@ struct device; struct file; struct iommu_group; +struct iommu_user_data; struct iommufd_access; struct iommufd_ctx; struct iommufd_device; @@ -95,9 +96,17 @@ struct iommufd_viommu { * struct iommufd_viommu_ops - vIOMMU specific operations * @destroy: Clean up all driver-specific parts of an iommufd_viommu. The memory * of the vIOMMU will be free-ed by iommufd core after calling this op + * @alloc_domain_nested: Allocate a IOMMU_DOMAIN_NESTED on a vIOMMU that holds a + * nesting parent domain (IOMMU_DOMAIN_PAGING). @user_data + * must be defined in include/uapi/linux/iommufd.h. + * It must fully initialize the new iommu_domain before + * returning. Upon failure, ERR_PTR must be returned. */ struct iommufd_viommu_ops { void (*destroy)(struct iommufd_viommu *viommu); + struct iommu_domain *(*alloc_domain_nested)( + struct iommufd_viommu *viommu, u32 flags, + const struct iommu_user_data *user_data); }; #if IS_ENABLED(CONFIG_IOMMUFD)